I use the Apple Wireless keyboard (without numpad, think that it's called the V3) together with my XP SP3 computer. It works pretty well, besides for this really annoying issue, which I do not know how to recreate. I've tried to google for a solution before posting here, but didn't find any.
From time to time, the FN button "locks" (equal to the Windows flag button) which means that by pressing the L button once and only, I toggle a WIN+L command - logging me out. Same thing goes for all other normal WIN+* combinations.
Super annoying, really. I do not know what to do to get out of this strange mode besides pressing CTRL+ALT+DEL which seems to work, but it would be handy to know why it's occuring.
Thanks a lot!
Update: Sticky keys and all other strange XP "enhancers of usability" are turned off - problem still occuring.